Ophthalmic device positioning system and associated methods

摘要

A system and method for determining an optimal position of an eye relative to an ophthalmic device are disclosed. One embodiment of the method includes receiving data comprising an image of a surface of an eye with the eye at a first position relative to an ophthalmic device. An edge feature in the image is located, and a sharpness calculation on the edge feature is performed using a predetermined algorithm to yield a sharpness value. The eye surface is then adjusted to a second position relative to the ophthalmic device, and the previous steps are repeated until the sharpness value is maximized, which is an indication that an optimal eye position has been achieved. An embodiment of the system includes a processor and a software package executable by the processor, the software package adapted to perform the calculations as above. Means are also provided for adjusting the eye surface to a second position relative to the ophthalmic device.

主权项

1. A method for determining an optimal position of an eye relative to an ophthalmic device comprising the steps of:
(a) receiving data comprising an image of a surface of an eye with the eye at a first position relative to an ophthalmic device; (b) locating an edge feature in the image, the edge feature being selected from a group consisting of a scleral blood vessel and an iris feature; (c) performing a sharpness calculation on the edge feature using a predetermined algorithm to yield a sharpness value; and (d) adjusting the eye surface to a second position relative to the ophthalmic device based on the sharpness calculation on the edge feature; and (e) repeating steps (a)-(d) until the sharpness value is maximized, wherein in each subsequent cycle the first position of step (a) is the second position of step (d) from the previous cycle and the second position of step (d) is a new position, indicating that an optimal eye position has been achieved.